WHOIS is answering right now. Last checked 16 min ago. It exposes 2 tools. Last commit 16 Sep 2026.
Query WHOIS/RDAP information for domains, IP addresses, CIDR prefixes and ASNs. Self-hostable.
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 22 August 2026. No other catalogue keeps this.
Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 16 min ago.
claude mcp add whois --transport http https://whois.ddnsip.cn/mcp
{
"mcpServers": {
"whois": {
"url": "https://whois.ddnsip.cn/mcp"
}
}
}
[mcp_servers.whois]
url = "https://whois.ddnsip.cn/mcp"
{
"mcpServers": {
"whois": {
"url": "https://whois.ddnsip.cn/mcp"
}
}
}
{
"mcpServers": {
"whois": {
"url": "https://whois.ddnsip.cn/mcp"
}
}
}
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
whois_batch_lookup
whois_lookup
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://whois.ddnsip.cn/mcp | streamable-http | answering | 2588 ms | 16 min ago |
Calculates IPv4 subnet information from an IP address and CIDR prefix or dotted decimal subnet mask
WHOIS domain MCP server that query the WHOIS information using IP2WHOIS API.
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Answers built from our own checks of this server.